Vapor trap



L. STADELHOFER VAPOR TRAP Aug. 1l,-1931.

Filed Sept. 25, 1929 R O T. V

' ATToRN Patented Aug. 11,1931 9 7 UNITE STATES PATENT OFFICE LESLIE STADELHOFER, OF NEXVARK, NEW' JERSEY VAPOR TRAP Application filed September 25, 1929. Serial No. 395,006.

This invention relates to an improved vamember so that the drain passage of the caspor trap for .radiators as used in radiators ot ing is arranged -in the lower part thereof. vacuum heating systems, and provides a trap This passage in the casing includes both which acts promptly in allowing the escape the part 28 ot the casing and the passage 2e in e of water or the retention ot steam. a screw 25. The screw 25 tits in the casing 5;, The invention also relates to a trap which and extends through to engage the valve is easily regulated without detachment from at one end as the end o'f the screw is formed the radiator as the valve mechanism can be into a valve seat 26'. The screw 25 being acadjusted from the outside. cessible from the outside can easily be oper- A further object of the invention is to proated by a tool to adjust the screw in its valve 6o vide a trap that has a settling chamber in seat relative to the valve 21. The passage 24 order that sand from the core, some ot which through thescrew is provided with multiple sand remains in radiators after casting, also transverse openings 27 to insure communicarust and other sediment developed in a radition between the part 24 and the passage 23 ator after use, is allowed to settle and is not without regard tothe rotative position of the 6C:

carried by the water and lodged in the valve screw 25. seat to hold the valve open and allow live On the inner end of the casing I secure a steam to escape and be wasted. shield 28 which has an opening 29 placed a The invention is illustrated in the accomsuitable distance above the bottom thereof,

panying drawings, in which Figure 1 is a side usually in the centre to allow access to the 7e View of my improved trap secured to a ranut 17 and this shield7 in conjunction with the diator. Figure 2 is a longitudinal section of flange 300i the casing, forms a settling chamthe improved trap. Figure 3 is a section on ber so that water passing through the valve line 3 3 in Figure 2. Figure 4 is an end on its way to the outlet passage is detained 5 view of the trap. and some particles of sand or rust are de- 'Ihe trap comprises a casing 10 which has posited on the bottom ot the shield and are a screw-threaded boss 1l which screws into not carried to the valve. This overcomes one the opening in the standard radiator shown ot the defects of the prior forms of valves at 12 and thus acts as a drain for the water which are often held open and thus not alin the radiator due to condensation of the lowed to Jfunction in sealing the outlet part 80 steam. The casing has a generally right of the radiator by the lodgment ot small angled form with an outlet part 13 to which grains of hard material on the valve or on the pipe 14 is secured. rIhis pipe is connected the Valve seat, particularly in valves that 0pwith the vacuum apparatus of the system. erate vertically on a horizontally arranged In-the casing 10 I place a thermostatic valve seat. member 15 which can be of any usual form In my form of trap the horizontally operand I illustrate the common bellows type ot' ated valve is not apt to retain any such parineinber which is usually provided with a ticles that might get to it which is also true of small amount of volatile fluid and this therthe valve seat 26.

mostatic member is supported at its outer end Various changes can be made in the con- 9.0 and I show screw-threaded pin 16 with the struction of the trap without departing from nuts 17 and 18 for its adjustment on the the scope of the invention. bracket 19, which is secured to the inner Jface I claim l of the casing. I show the screws 20 as the 1. A vapor trap comprising a casing hav- 5 fastening means for the bracket 19. On the ing an inlet7 a thermostatic member on said Q5 other end of the thermostatic member I seinlet end and a valve supported by the memcure the valve 21. This valve is preferably ber, a screw passing into the casing and opmade in the form of a dome and is opened erable from the outside and having a pason a. short arm 22 from the thermostaticmeinsage therethrough, the screw having its end ber so that it is lower than the thermostatic formed to provide a valve seat for the valve, 100

the casing having an outlet Communicating with the passage in the screw.

2. A Vapor trap Comprising a casing with an inlet at one end and adapted to iit into the wall of a radiator section, a thermostatie member supported on said inner end, the casing having an outlet passage, a valve influenced by the member for regulating the flow of iiuid through the easing, a settling receptacle in which the member is disposed, the casing having the outlet passage arranged above the bottom of the said chamber.

3. A vapor trap comprising a Casing with an inlet at one end and adapted to iit into the Wall of a radiator section, a thermostatie member supported on said inner end, the casing having an outlet passage, a valve influenced by the member for regulating the flow of fluid through the easing, a settling receptacle in which the member is disposed, the Casing having the outlet passage arranged above the bottom of the said chamber and a screw in said outlet passage and accessible from the outside with one end forming a seat for the valve and With apassage arranged lon gitudinally therein and cross-passages to communicate with the outlet of the easing.

4. A vapor trap comprising easing with a Y right angled passa-ge therein, andrharing its exterior screw-threaded to fit into the Wall of a radiator section, a thermostatic member secured on the inside of the Valve and the part Within the radiator, a valve actuated by the thermostat, and the outlet of the passage being arranged on the easing so as to be outside the radiator section.

In testimony whereof he aiiiXes his signature.

LESLIE STADELHOFER. 

